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Journal of Applied Oral Science: Revista FOB

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https://www.readbyqxmd.com/read/29898187/oral-implant-osseointegration-model-in-c57bl-6-mice-microtomographic-histological-histomorphometric-and-molecular-characterization
#1
Claudia Cristina Biguetti, Franco Cavalla, Elcia M Silveira, Angélica Cristina Fonseca, Andreia Espindola Vieira, Andre Petenuci Tabanez, Danieli C Rodrigues, Ana Paula Favaro Trombone, Gustavo Pompermaier Garlet
INTRODUCTION: Despite the successful clinical application of titanium (Ti) as a biomaterial, the exact cellular and molecular mechanisms responsible for Ti osseointegration remains unclear, especially because of the limited methodological tools available in this field. OBJECTIVE: In this study, we present a microscopic and molecular characterization of an oral implant osseointegration model using C57Bl/6 mice. MATERIAL AND METHODS: Forty-eight male wild-type mice received a Ti implant on the edentulous alveolar crest and the peri-implant sites were evaluated through microscopic (μCT, histological and birefringence) and molecular (RealTimePCRarray) analysis in different points in time after surgery (3, 7, 14 and 21 days)...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898186/myofascial-trigger-points-in-patients-with-temporomandibular-joint-disc-displacement-with-reduction-a-cross-sectional-study
#2
Rodrigo Lorenzi Poluha, Eduardo Grossmann, Lilian Cristina Vessoni Iwaki, Taqueco Teruya Uchimura, Rosângela Getirana Santana, Liogi Iwaki Filho
OBJECTIVE: The objective of this retrospective study was to evaluate the impact of myofascial trigger points (MTrPs) in patients with articular disc displacement with reduction (DDWR) and to identify which clinical variables are associated with the concomitant presence of DDWR and MTrPs. MATERIAL AND METHODS: 130 patients were selected that sought treatment due to joint pain, with ages ≥18 years, of both genders, with DDWR confirmed by magnetic resonance imaging...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898185/standardization-of-a-protocol-for-shotgun-proteomic-analysis-of-saliva
#3
Talita Mendes da Silva Ventura, Nathalia Regina Ribeiro, Aline Salgado Dionizio, Isabela Tomazini Sabino, Marília Afonso Rabelo Buzalaf
INTRODUCTION: Saliva contains numerous proteins and peptides, each of them carries a number of biological functions that are very important in maintaining the oral cavity health and also yields information about both local and systemic diseases. Currently, proteomic analysis is the basis for large-scale identification of these proteins and discovery of new biomarkers for distinct diseases. OBJECTIVE: This study compared methodologies to extract salivary proteins for proteomic analysis...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898184/long-term-microwaving-of-denture-base-materials-effects-on-dimensional-color-and-translucency-stability
#4
Nick Polychronakis, Gregory Polyzois, Panagiotis Lagouvardos, Andreas Andreopoulos, Hien Chi Ngo
INTRODUCTION: While the combined effect of microwave irradiation with cleansing solutions on denture base materials has been investigated, the effects of only using microwave irradiation and, more importantly, in a long-term basis, was not studied yet. OBJECTIVE: The purpose of this study was to evaluate the effect of a long-term repeated microwaving on the dimensional, color and translucency stability of acrylic and polyamide denture base materials. MATERIAL AND METHODS: Thirty two specimens (32 mm x 10 mm x 2...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898183/maxillomandibular-giant-osteosclerotic-lesions
#5
Constantino Ledesma-Montes, María Dolores Jiménez-Farfán, Juan Carlos Hernández-Guerrero
INTRODUCTION: Giant Osteosclerotic Lesions (GOLs) are a group of rarely reported intraosseous lesions. Their precise diagnosis is important since they can be confused with malignant neoplasms. OBJECTIVE: This retrospective study aimed to record and analyze the clinical and radiographic Giant Osteosclerotic Lesions (GOLs) detected in the maxillomandibular area of patients attending to our institution. Materials and Methods: Informed consent from the patients was obtained and those cases of 2...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898182/minimization-of-polymerization-shrinkage-effects-on-composite-resins-by-the-control-of-irradiance-during-the-photoactivation-process
#6
Gabriel Felipe Guimarães, Edilmar Marcelino, Ivana Cesarino, Fábio Bossoi Vicente, Carlos Roberto Grandini, Rafael Plana Simões
INTRODUCTION: High levels of shrinkage stress caused by volumetric variations during the activation process are one of the main problems in the practical application of composite resins. OBJECTIVE: The aim of this study is to reduce the shrinkage stress and minimize the effects caused by composite resin volumetric variation due to the photopolymerization. In this way, this work proposes a systematic study to determine the optimal dimming function to be applied to light curing processes...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898181/changes-in-bacterial-number-at-different-sites-of-oral-cavity-during-perioperative-oral-care-management-in-gastrointestinal-cancer-patients-preliminary-study
#7
Tomoko Kawano, Hideo Shigeishi, Eri Fukada, Takamichi Yanagisawa, Nobukazu Kuroda, Toshinobu Takemoto, Masaru Sugiyama
OBJECTIVE: The objective of this study was to clarify differences in bacterial accumulation between gastrointestinal cancer patients who underwent severely invasive surgery and those who underwent minimally invasive surgery. MATERIAL AND METHODS: We performed a preliminary investigation of gastrointestinal cancer patients who were treated at the Department of Surgery, Takarazuka Municipal Hospital, from 2015 to 2017 (n=71; 42 laparoscopic surgery, 29 open surgery) to determine changes in bacterial numbers at different sites of the oral cavity (tongue dorsum, gingiva of upper anterior teeth, palatoglossal arch), as well as mouth dryness and tongue coating indices...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898180/dental-caries-and-bacterial-load-in-saliva-and-dental-biofilm-of-type-1-diabetics-on-continuous-subcutaneous-insulin-infusion
#8
Ana Coelho, Anabela Paula, Marta Mota, Mafalda Laranjo, Margarida Abrantes, Francisco Carrilho, Manuel Ferreira, Mário Silva, Filomena Botelho, Eunice Carrilho
OBJECTIVES: Since most of the studies evaluates diabetics on multiple daily injections therapy and continuous subcutaneous insulin infusion may help gain better metabolic control and prevent complications, the objective of this study was to evaluate the prevalence of dental caries, the unstimulated salivary flow rate and the total bacteria load, Streptococcus spp. levels and Lactobacillus spp. levels in saliva and supragingival dental biofilm of type 1 diabetics on insulin pump. MATERIAL AND METHODS: Sixty patients with type 1 diabetes on insulin pump and 60 nondiabetic individuals were included...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898179/caries-lesion-remineralization-with-fluoride-toothpastes-and-chlorhexidine-effects-of-application-timing-and-toothpaste-surfactant
#9
Sami A Almohefer, John A Levon, Richard L Gregory, George J Eckert, Frank Lippert
INTRODUCTION: Habitual toothbrushing with fluoridated toothpaste followed by rinsing with antibacterial mouthwashes is a method to maintain good oral hygiene and to diminish the occurrence and severity of dental caries and periodontal disease. However, our understanding of how antimicrobial agents in mouthwashes affect fluoride-mediated caries lesion remineralization is still poor. OBJECTIVE: The objectives of this in vitro study were a) to determine the effects of the waiting period of chlorhexidine (CHX) rinsing after fluoride toothpaste use and b) to further determine the effect of the type of toothpaste surfactant [sodium dodecyl sulfate (SDS) or cocamidopropyl betaine (CAPB)] on caries lesion remineralization associated with CHX rinsing...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898178/differential-immunohistochemical-expression-of-type-i-collagen-and-matrix-metalloproteinase-2-among-major-salivary-glands-of-young-and-geriatric-mice
#10
Mehmet Kemal Tumer, Mustafa Cicek
OBJECTIVE: This study aimed to demonstrate the immunohistochemical changes associated with MMP-2 and type 1 collagen separately for the first time in the major salivary glands (the parotid, submaxillary, and sublingual glands) that occur with aging in mice. MATERIAL AND METHODS: Fourteen Balb/c white mice (50-80 g) were used in this study. The animals were divided into two equal groups. Group I consisted of young animals (2-month-old) (n=7) and Group II consisted of older animals (18-month-old) (n=7)...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898177/pro-inflammatory-and-anti-inflammatory-cytokine-expression-in-post-treatment-apical-periodontitis
#11
Nilton Dessaune Neto, Mariana Teixeira Maneschy Porpino, Henrique Dos Santos Antunes, Renata Costa Val Rodrigues, Alejandro Ron Perez, Fábio Ramôa Pires, José Freitas Siqueira, Luciana Armada
OBJECTIVE: This study evaluated the expression of pro-inflammatory (IL-1β, IL-6, IFN-γ and TNF-α) and anti-inflammatory (IL-4 and TGF-β) cytokines in apical periodontitis lesions. Correlations between these cytokines and clinical and cone-beam computed tomographic (CBCT) data were also assessed. MATERIAL AND METHODS: Apical periodontitis lesions' data were obtained from 27 patients subjected to periradicular surgery. Specimens were processed for histopathologic and immunohistochemical analysis...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898176/alterations-in-the-stomatognathic-system-due-to-amyotrophic-lateral-sclerosis
#12
Lígia Maria Napolitano Gonçalves, Marcelo Palinkas, Jaime Eduardo Cecilio Hallak, Wilson Marques Júnior, Paulo Batista de Vasconcelos, Nicolly Parente Ribeiro Frota, Isabela Hallak Regalo, Selma Siéssere, Simone Cecilio Hallak Regalo
OBJECTIVES: To compare the molar bite force, electromyographic activity, chewing efficiency and thickness of the masseter and temporalis muscles in individuals with amyotrophic lateral sclerosis (ALS) and healthy individuals. MATERIAL AND METHODS: Thirty individuals enrolled in the study were divided into the study group (with ALS, n=15) and control group (healthy individuals, n=15). Data regarding molar bite force (right and left), electromyographic activity (mandibular rest, right and left laterality, protrusion, and maximum voluntary contraction), chewing efficiency (habitual and non-habitual), and masticatory muscle thickness (rest and maximum voluntary contraction) were tabulated and subjected to statistical analysis (Student's t-test, p≤0...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898175/in-office-tooth-bleaching-with-38-hydrogen-peroxide-promotes-moderate-severe-pulp-inflammation-and-production-of-ll-1%C3%AE-tnf-%C3%AE-gpx-fgf-2-and-osteocalcin-in-rats
#13
Renata Suellen Galvão da Silva-Costa, Andressa Eveline de Lima Ribeiro, Isauremi Vieira de Assunção, Raimundo Fernandes de Araújo Júnior, Aurigena Antunes de Araújo, Gerlane Coelho Bernardo Guerra, Boniek Castillo Dutra Borges
OBJECTIVES: To study the intensity of inflammatory infiltrate and production of interleukin-1β (ll-1β), tumor necrosis factor-β (TNF-β), fibroblast growth factor-2 (FGF-2), glutathione peroxidase (GPX), and osteocalcin in response to in-office tooth bleaching in rats. MATERIAL AND METHODS: Twenty male Wistar rats were randomized into four groups (n=5) according to the received treatment (tooth bleaching or no treatment - control) and the period of euthanasia after treatment (24 h or 10 days)...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898174/alveolar-bone-healing-in-rats-micro-ct-immunohistochemical-and-molecular-analysis
#14
Jaqueline Suemi Hassumi, Gabriel Mulinari-Santos, André Luis da Silva Fabris, Ricardo Garcia Mureb Jacob, Alaíde Gonçalves, Ana Cláudia Rossi, Alexandre Rodrigues Freire, Leonardo Pérez Faverani, Roberta Okamoto
INTRODUCTION: Alveolar bone healing after upper incisor extraction in rats is a classical model of preclinical studies. The underlying morphometric, cellular and molecular mechanism, however, remains imprecise in a unique study. OBJECTIVES: The aim of this study was therefore to characterize the alveolar bone healing after upper incisor extraction in rats by micro computed tomographic (Micro-CT), immunohistochemical and real-time polymerase chain reaction (RT-PCR) analysis...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898173/bioactive-glass-added-to-autogenous-bone-graft-in-maxillary-sinus-augmentation-a-prospective-histomorphometric-immunohistochemical-and-bone-graft-resorption-assessment
#15
Juliana Dreyer Menezes, Rodrigo Dos Santos Pereira, João Paulo Bonardi, Geraldo Luiz Griza, Roberta Okamoto, Eduardo Hochuli-Vieira
OBJECTIVE: The aim of this study was to compare the bone resorption rate, histomorphometry and immunohistochemical findings of bioactive glass (Biogran; Biomet, Warsaw, IN, USA) mixed with autogenous bone grafts (1:1) and autogenous bone graft isolate in maxillary sinus elevation surgery. MATERIAL AND METHODS: A total of 9 maxillary sinuses were grafted with Biogran with autogenous bone graft (group 1) and 12 were mixed with autogenous bone graft (group 2). Postoperative cone beam computed tomography (CBCT) was used to measure the initial graft volume after 15 days (T1), and 6 months later, another CBCT scan was performed to evaluate the final graft volume (T2) and determine the graft resorption rate...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29898172/efficacy-of-relacin-combined-with-sodium-hypochlorite-against-enterococcus-faecalis-biofilms
#16
Cai Yanling, Liu Hongyan, Wei Xi, Crielaard Wim, Deng Dongmei
OBJECTIVE: Relacin is a synthetic molecule that targets RelA, an essential protein in a conserved bacterial stress response system. It was shown to inhibit bacterial growth. The aims of this study were to evaluate the antimicrobial effect of relacin combined with sodium hypochlorite (NaOCl) on Enterococcus faecalis biofilms and to evaluate the cytotoxicity of relacin. MATERIAL AND METHODS: 48-h E. faecalis OG1RF biofilms were treated by various concentrations of relacin in order to determine its inhibitory concentration...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29768525/effects-of-a-food-enriched-with-probiotics-on-streptococcus-mutans-and-lactobacillus-spp-salivary-counts-in-preschool-children-a-cluster-randomized-trial
#17
Judy Villavicencio, Lina Maria Villegas, Maria Cristina Arango, Susana Arias, Francia Triana
Probiotics have provided benefits to general health, but they are still insufficient to dental health. This study aimed to evaluate milk supplemented with probiotic bacteria and standard milk, measured by levels of Streptococcus mutans (S. mutans) and Lactobacillus spp., in 3-4-year-old children after 9 months of intervention. The study was a triple-blind, placebo-controlled, randomized trial. The sample was composed of 363 preschoolers attending five child development centers in Cali, Colombia. They were randomized to two groups: children in the intervention group drank 200 mL of milk with Lactobacillus rhamnosus 5x106 and Bifidobacteruim longum 3x106, and children in the control group drank 200 mL of standard milk...
May 14, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29768524/evaluation-of-the-effect-of-dose-dependent-platelet-rich-fibrin-membrane-on-treatment-of-gingival-recession-a-randomized-controlled-clinical-trial
#18
Rana Culhaoglu, Levent Taner, Berceste Guler
Miller's class I gingival recessions (GR) have been treated using coronally advanced flap (CAF) with platelet-rich fibrin membrane (PRF membrane) or connective tissue graft (CTG). The aim of this study was to evaluate the effect of different multiple layers of PRF membranes for the treatment of GR compared with the CTG procedure. Sixty-three Miller class I GR were treated in this study. Twenty-one GR selected randomly were treated with two layers of PRF membranes+CAF in 2PRF+CAF (test group-1), four layers of PRF membranes+CAF in 4PRF+CAF (test group-2), and CTG+CAF in the control group...
May 14, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29768523/extracellular-calcium-increases-fibroblast-growth-factor-2-gene-expression-via-extracellular-signal-regulated-kinase-1-2-and-protein-kinase-a-signaling-in-mouse-dental-papilla-cells
#19
Sousuke Kanaya, Binlu Xiao, Yukihiko Sakisaka, Mizuki Suto, Kentaro Maruyama, Masahiro Saito, Eiji Nemoto
We previously reported that elevated extracellular calcium (Ca2+) levels increase bone morphogenetic protein 2 expression in human dental pulp (hDP) cells. However, it is unknown whether extracellular Ca2+ affects the expression of other growth factors such as fibroblast growth factor 2 (FGF2). The present study aimed to examine the effect of extracellular Ca2+ on FGF2 gene expression in hDP and immortalized mouse dental papilla (mDP) cells. Cells were stimulated with 10 mM CaCl2 in the presence or absence of cell signaling inhibitors...
May 14, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29768522/tif4-varnish-protects-the-retention-of-brackets-to-enamel-after-in-vitro-mild-erosive-challenge
#20
Maria Isabel Dantas de Medeiros, Hugo Lemes Carlo, Rogério Lacerda Dos Santos, Frederico Barbosa Sousa, Ricardo Dias de Castro, Renata Cristina Sobreira França, Fabíola Galbiatti de Carvalho
The effect of fluoride agents on the retention of orthodontic brackets to enamel under erosive challenge is little investigated. The aim of this study was to evaluate the effect of titanium tetrafluoride (TiF4) and sodium fluoride (NaF) agents on the shear bond strength of brackets to enamel and on the enamel microhardness around brackets under erosive challenge. Brackets were bonded to bovine incisors. Five groups were formed according to fluoride application (n=10): TiF4 varnish, TiF4 solution, NaF varnish, NaF solution and control (without application)...
May 14, 2018: Journal of Applied Oral Science: Revista FOB
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